Find the total surface area of a closed cuboid whose length, breadth and height are 16cm,12cm, and 8cm, respectively.

Correct option is C

Given:

Length (l) = 16cm

Breadth (b) = 12cm 

Height (h) = 8cm 

Formula used:

Total Surface Area =2(lb + bh + hl)

Solution:

Calculate individual terms-

l × b = 16×12 = $$192 cm^2$$

b × h = 12×8 = $$96cm^2$$

h × l = 8×16 = $$128cm^2$$

​​Total Surface Area = 2×(192+96+128) 

Total Surface Area = 2 × 416 = 832$$cm^2$$

​​The total surface area of the cuboid is 832$$cm^2$$

Thus, correct option is (c)